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HCF Worksheet

Vedic maths trick 36: HCF by subtraction · Set 408 · 40 sums
TalentJR

The trick (Sankalana-Vyavakalanabhyam): Take the smaller number away from the bigger one, as many times as it goes. Now use the smaller number and what is left. Repeat until nothing is left: the last number before 0 is the HCF.

NameDateTime takenScore ___ / 40
  1. 1.HCF of 112 and 42 =
  2. 2.HCF of 360 and 342 =
  3. 3.HCF of 96 and 104 =
  4. 4.HCF of 52 and 20 =
  5. 5.HCF of 90 and 55 =
  6. 6.HCF of 84 and 133 =
  7. 7.HCF of 312 and 480 =
  8. 8.HCF of 42 and 24 =
  9. 9.HCF of 25 and 55 =
  10. 10.HCF of 156 and 108 =
  11. 11.HCF of 104 and 120 =
  12. 12.HCF of 39 and 260 =
  13. 13.HCF of 54 and 102 =
  14. 14.HCF of 72 and 132 =
  15. 15.HCF of 187 and 153 =
  16. 16.HCF of 171 and 95 =
  17. 17.HCF of 288 and 456 =
  18. 18.HCF of 110 and 209 =
  19. 19.HCF of 440 and 286 =
  20. 20.HCF of 408 and 336 =
  21. 21.HCF of 299 and 345 =
  22. 22.HCF of 96 and 54 =
  23. 23.HCF of 234 and 270 =
  24. 24.HCF of 320 and 340 =
  25. 25.HCF of 90 and 65 =
  26. 26.HCF of 65 and 247 =
  27. 27.HCF of 36 and 306 =
  28. 28.HCF of 322 and 115 =
  29. 29.HCF of 91 and 208 =
  30. 30.HCF of 112 and 96 =
  31. 31.HCF of 154 and 165 =
  32. 32.HCF of 361 and 114 =
  33. 33.HCF of 96 and 312 =
  34. 34.HCF of 110 and 88 =
  35. 35.HCF of 221 and 143 =
  36. 36.HCF of 91 and 133 =
  37. 37.HCF of 200 and 70 =
  38. 38.HCF of 280 and 340 =
  39. 39.HCF of 6 and 40 =
  40. 40.HCF of 325 and 150 =

Answer key

  1. 14
  2. 18
  3. 8
  4. 4
  5. 5
  6. 7
  7. 24
  8. 6
  9. 5
  10. 12
  11. 8
  12. 13
  13. 6
  14. 12
  15. 17
  16. 19
  17. 24
  18. 11
  19. 22
  20. 24
  21. 23
  22. 6
  23. 18
  24. 20
  25. 5
  26. 13
  27. 18
  28. 23
  29. 13
  30. 16
  31. 11
  32. 19
  33. 24
  34. 22
  35. 13
  36. 7
  37. 10
  38. 20
  39. 2
  40. 25

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